Electric signaling device.



UNGEN.

ELECTRIC SIGNALING DEVICE.

APPLICATION FILED SEPT. 24, 1910.

Patented Apr. 16, 1912.

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A. LUNGEN. ELECTRIC SIGNALING DEVICE. APPLICATION IILED 8122124, 1910.

1,023,743,, Patented Apr. 16, 1912.

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ADAM LUNGEN, on NEW YORK, 1v. Y., AssIoNo T0 EDWARDS & 00. mo, 01? NEW YORK, N. Y., A CORPORATION or NEW YORK.

ELECTRIC SIGNALING DEVICE.

Specification of Letters Patent.

Patented Apr. is, rare.

Application filed September 24, 1910. Serial No. 583,570.

To all whom it may concern:

Be it known that I, ADAM LUNGEN, of the city of New York, borough of Bronx, county and State of New York, have invented certain new and useful Improvements in Electric. Signaling Devices, of

which the following is a full, clear, and exactspecification, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to certain improve- 1 ments in electrical signaling devices and more particularly to a type of device in which there is employed a diaphragm or other resonant body in conjunction with an electro-magnct, the hammer or striker of which intermittently operates upon the resonant body. Its preferred embodiment is par-. ticularly applicable for automobile horns,

although certain features of my invention may be employed in various-other forms of signaling devices.

The main objectof my invent-ion is to simplify the construction and at'the same time render the operation more positive and lower the cost of construction and assembling.

One important feature of my invention .involves the supporting of most of the essential operating parts independently of each other upon a bracket or base by means of which the device is itself supported, thus all of the parts are held in the proper re-- lationship to each other and the loosening or displacement of one part does not affect the remaining ones. I

A further-feature is the facilities which are aiforded to the complete drainage of water or moisture which may collect within the horn or adjacent the diaphragm.

A further feature involves the sealing of the operating parts within a substantially through'an automobile horn constructed in.

accordance with my invention; Figs. 2 and 3 are transverse sections therethrough on the lines 2-2 and 33 respectively of Fig. 1; and Fig. 4 is a sectional view of the casing on a-reduced scale.

In my improved construction I employ a main supporting bracket having an annular plate portion 10 and an outwardly extending' arm 11 preferably cast integral. The plate portion 10 is provided with an annular recess 12 in one face thereof and to the peripheral portion ofthis face is attached a diaphragm 13. As shown the diaphragm 13 is in the form of a circular sheet metal plate engaging with the face of the main supporting plate or bracket around the periphery of the latter. The horn 14 is formed of sheet metal soldered or otherwise rigidly secured upon a flange 15 of a base portion 16. The base portion iscountersunk upon the side opposite to the horn proper so as to leave'a recess or chamber 17. A plurality of screws 18 extend through the peripheral portion of this base and through the peripheral portion of the dia-- phragm, so as to rigidly secure the horn to the bracket portion 10 and at the same time to rigidly secure the peripheral portion of the diaphragm leaving the central portion free to vibrate. The horn is normally supported-substantially in a horizontal posi- .tion and to prevent the collection of any rain water or moisture or other form of material within the recess or chamber 17 the peripheral portion of the base 16 1s provided with a series of radial passages 19. These passages are arranged between the screws 18 and are so disposed that the water may drain from the chamber irrespective of whether the bracket portion 11 be disposed above, below, or at one side of the annular plate portion 10.

Upon the side of the plate 10, opposite to the horn, there is an annular raised portion 20 of smaller diameterthan the plate and provided with a recess 21 in the side toward the diaphragm and concentric with the recess or chamber 12. Rigidly secured to this raised portion 20 are a. plurality of posts 22, serving to hold an outer plate 23 rigid with the main bracket. This Plate 23 is substantially circular in form and has depending from the side thereof toward the diaphragm two electro-magnets 24., These magnets are spaced a short distance apart and are rigidly secured to the plate 23, so that their free ends come adjacent to but spaced from the diaphragm 13.

Within the recess 12 in the bracket 10, I mount a steel plate spring 24, so as to extend diametrically across the said recess and adjacent the ends of the magnets. The spring is supported at both ends so that the center is free to vibrate a limited extent. Rigidly secured to the diaphragm is a metal bar 25, constituting the armature and disposed adjacent to, but spaced from the poles of the magnets. Rigidly secured to the armature and spring is a rod 26 serving a double function of striker or hammer and circuit breaker. The rod extends through the armature and spring and is normally in contact with the face of the diaphragm. The opposite end of the rod extends through the plate 23, and constitutes means for operating the circuit closer. In order to provide for the proper adjustment of the diaphragm and the striker or hammer 26, I

.provide the diaphragm with a boss 27 upon its outer face and through which extends an adjusting screw 28. The end of the screw comes opposite to the end of the striker or hammer and the screw is so adjusted that the striker will contact therewith with considerable force when the circuit is broken to let the armature fly away from the electromagnets to the position indicated in Fig. 1. It will be noted that the striking of the diaphragm is not due to the attraction of ing material.

the coils, but is due to the return of the spring 24 after the coils release the armature.

For intermittently making and breaking the circuit to produce a hammering effect on the diaphragm, I provide a circuit closer which includes two circuit closing members 29 and 30. The member 29 is in the form of a flat spring of conducting material supported substantially parallel to the outer surface of the plate 23 and spaced therefrom. For supporting this contact member a portion of the periphery of the plate 23 is preferably slitted and the portion between the slits struck up to constitute a flange 30 parallel to the body of the plate. By means of suitable screws 31, the contact member 29 is secured to this flange, but it is insulated therefrom by a layer 32 of suitable insulat- This insulating material is protected so that the rod 29 will not produce any wear by means of an intermediate spring 33. One of the screws 31 preferably serves as a binding post to the inner end of which may be attached a terminal wire from one of the coils as is illustrated in Fig. 1. The other contact member 30 is preferably in the form of a U-shaped spring with one leg 34 substantially parallel with the outer surface of said plate. The leg 35 is insulated from the plate 23 and has outwardly extending flanges through which screws 36 may extend to hold this leg rigid with the plate. The resiliency of the contact member is such that the two ends of the parts 34 and 35 tend to come together. A suitable screw 44 extends through the outer leg and abuts against the inner leg so as to hold the outer leg in proper position relative to the contact member 29. As shown the two members are in engagement with each other with the member 29 onthe outer side. The closing of the circuit through the outer switch, or other circuit closer, causes the armature to be attracted to the magnet and the rod 26 will contact with the spring 33 and separate the members 29 and 30 so as to break the circuit and permit the spring 24 to force the striker against the diaphragm to produce the desired sound. One of the screws 36 may serve as a binding post for the other terminal wire from thesource of current. It will be noted that these parts, that is, the coils and the contact members, are supported from the main bracket independently of the diaphragm or the horn and that no moisture can gain access to these parts from one direction as the diaphragm forms a substantially hermetic seal.

For preventing the access of dust and moisture to the coils and contacts, I provide a casing 37 substantially in the form of a sheet metal cup. This cup is made to closely fit the raised port-ion 20 of the bracket and is provided with an outwardly extending flange at its free edge to facilitate its attachment directly to the rear surface of the bracket by means of suitable screws 38. The

casing thus engages with the bracket along the cylindrical peripheral face of the extensi on 20 and against the annular fiat face of the bracket and a very effective and substantial watertight joint is thus produced. The casing is imperforate except for apertures which receive two studs 39. These studs are firmly clamped in place and are insulated by suitable washers so as to effectively prevent the admission of moisture or dust to the casing through the apertures or around the studs. Each stud at its inner end carries two jaws 40 of suitable spring metal. The plate 23 has two lugs or flanges 41 struck up therefrom at opposite sides and each flange carries a cylindrical stud 42 insulated therefrom. These cylindrical studs extend directly toward each other substantially parallel to the plate 23 and are so positioned that when the casing 37 is placed in position one pair of spring jaws 40 will resiliently receive therebetweerr one of the studs 42 and the other pair of jaws will receive the other stud. The outer end of one of the studs is directly connected to one of the screws 36 and the other of the studs is connected to the screw 31. It will thus be noted that after all of the operating parts of the horn have been placed in position properly adjusted and tested the casing 37 may be placed in position and held there by the screws 38. The very act of attaching this casing causes a proper electrical connection to be made between the two outer studs 39 to which the feed wires connect and the coils and circuit breaker' within the casing. Any suitable brating said spring for striking the diameans may be employed for attaching the feed Wires to the outer ends of the studs 39. As shown, these studs have substantially spherical heads and each wire terminates-in a fixture having spring jaws 43. Each jaw has a cavity or socket 45 in the face thereof so as to grip the spherical'head.

Having thus described my invention what I claim as new and desire to secure by Letters Patent of the United States is:

1. An electric signaling device including a supporting bracket, having a recess in one face thereof, a diaphragm extending across said recess and secured to said bracket, a spring also extending across said recess substantially parallel to said diaphragm, an

armature secured to said spring and an electro-magnet ad acent said armature for v1- phragm,

2. An electric signaling deyice including a supporting bracket, having a recess in one face thereof, a diaphragm extending across said recess and secured to said bracket, a spring also extending across said recess substantially parallel to said diaphragm, an armature secured to said spring and an electro-magnet adjacent said armature for vibrating said spring for striking the diaphragm, said electro-magnet, said spring and the said diaphragm being independently secured to said bracket.

3. An electric signaling device, having a bracket including a plate portion, said plate portion having two concentric recesses in one face thereof, a diaphragm extending across said face to cover both recesses, a spring disposed within the larger recess extending there across, an armature carried by said spring and disposed within the smaller recess and an electroanagnet carried by said bracket and disposed adjacent said armature.

4:. An electric signaling device, having a flat spring supported at both ends, an armature, a striker and a circuit breaker, all carried by said spring, a resonant body supported adjacent said striker, an electro-magnet for operating said armature and circuit closin contact members movable relatively to eac other by said circuit breaker.

5. An electric signaling device, having a supporting member, a plate spaced therefrom and held substantially rigid therewith, a magnet disposed between said member and said plate and carried by the latter, circuit closing contact members carried by said plate, an armature at the opposite end of said magnet from said plate, a rod connected to said armature and extending through said plate for moving one of said contact members to break the circuit upon the energizing of the magnet, and a spring secured to said supporting member and carrying said armature and said rod.

6. An electric signaling device, having a supporting member, a frame carried thereby and including a plate having a struck up portion, a spring contactmember carried by said struck up portion, substantially parallel to said plate, a second contact member carried by said plate, an electro-magnet carried by said plate and means operated by said electro-magnet for moving one of said members relatively to the other.

' 7. .An electric signaling device having a supporting member, a frame carried thereby and includinga plate, a spring contact member carried by said plate, a second contact member of substantially U-form with one leg secured to said plate and the other leg parallel thereto and means movable through said plate for moving one of said contact members relatively to the other.

8. An electric signaling device, having a supporting member, a frame carried thereby and including a plate, a spring contact member carried by said plate, a second contact member of substantially U-form with one leg secured to said plate and the other leg parallel thereto and means movable through said plate for moving one of said contact members relatively to the other, and an adjusting screw carried by the secondmentioned leg and having engagement with the first-mentioned leg for varying the position of the first-mentioned contact member relatively to the other contact member.

9. An'electric signaling device including a supporting member, a frame carried thereby and including a plate having struck up flanges, studs secured to said flanges, a casing carried by said supporting member and spring contact jaws carried by said casing for receiving said studs upon the securing of the casing in position.

10.1 m electric signaling device having a diaphragm, a spring substantially parallel to said diaphragm, means secured to the peripheral portion of said diaphragm to hold both ends of said spring, an armature secured to said spring and an electro-magnet adjacent to said armature for vibrating said spring to strike the diaphragm.

11. An electric signaling device including a diaphragm, a spring substantially parallel to said diaphragm and extending diametrically across, means for holding the ends of said spring substantially rigid with respect to the peripheral portion of the diaphragm, an armature secured to said spring intermediate between its ends and an electro-magnet adjacent to said armature for vibrating said spring to strike the diaphragm.

In testimoni whereof I have signed my name to this specification in the presenceof two subscribing Witnesses.

,ADAM LUNGEN. Witnesses:

' LOUIS H. SPIER, WM. MEHRHOFF. 

